Title (en)

METHOD FOR MONITORING A ROTARY ELEMENT BELONGING TO A MECHANICAL TRANSMISSION OF A WIND TURBINE

Title (de)

VERFAHREN ZUR ÜBERWACHUNG EINES DREHBAREN ELEMENTS EINES MECHANISCHEN GETRIEBES EINER WINDENERGIEANLAGE

Title (fr)

PROCÉDÉ DE SURVEILLANCE D'UN ÉLÉMENT TOURNANT APPARTENANT À UNE TRANSMISSION MÉCANIQUE D'UN AÉROGÉNÉRATEUR

Publication

EP 2630453 B1 20141126 (FR)

Application

EP 11787732 A 20111021

Priority

• FR 1058617 A 20101021
• FR 2011052465 W 20111021

Abstract (en)

[origin: WO2012052694A1] The invention relates to a method comprising the steps of: a) determining a signal that is representative of the instantaneous angular velocity of the rotary element over an acquisition period; b) sampling the signal representative of the angular velocity at a constant angular pitch over a predetermined number of samples; c) calculating the discrete Fourier transform of the signal representative of the angular velocity, sampled during step b), so as to obtain an order spectrum of the signal representative of the angular velocity; and d) detecting the fundamental frequency of the occurrence of a defect in the rotary element over the order spectrum of the signal representative of the angular velocity.

IPC 8 full level

G01H 1/00 (2006.01)

CPC (source: EP)

G01H 1/003 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2012052694 A1 20120426; CN 103221791 A 20130724; CN 103221791 B 20150218; DK 2630453 T3 20150302; EP 2630453 A1 20130828; EP 2630453 B1 20141126; ES 2530496 T3 20150303; FR 2966597 A1 20120427; FR 2966597 B1 20121130; PL 2630453 T3 20150529; PT 2630453 E 20150225

DOCDB simple family (application)

FR 2011052465 W 20111021; CN 201180050076 A 20111021; DK 11787732 T 20111021; EP 11787732 A 20111021; ES 11787732 T 20111021; FR 1058617 A 20101021; PL 11787732 T 20111021; PT 11787732 T 20111021